RubySports Men Polarized TR90 Frame Sunglasses UV400 Cycling Glasses Eyewear with 5 Interchangable Lenses Shatterproof Flexible Polycarbonate Frame 5 color tinted UV400 protective lenses for a bunch of different environments (sun, snow, shooting, surf),each are made for various uses. It feels like getting 5 pairs of sunglasses in 1! Please notice that the black lenses is the only polarized lenses version to prevent strong UVA UVB glare. With soft and elastic belt-Can change to the Elastic Sport Belt,Inner frame for shortsighted lenses Lightweight and cool fashion design sunglasses ,which is ideal for usage by motorcycle and cycling bicycle, driving, running, fishing, racing, Skiing and climbing, Trekking or other outdoor activities enthusiasts. Allows for easy and convenient to carry and install. Come with decent case for storage, you can use the case to store four other lens and plus some accessories. Also it's a wise choice to as a gift/present for birthday, festival, anniversary, etc.